<template>
   <div class="todo-header">
        <input v-focus v-model.trim="str" @keyup.enter="saveValue" type="text" placeholder="请输入你的任务名称，按回车键确认"/>
    </div>
</template>

<script>

    export default {
        name: "TodoHeader",
        data(){
          return{
            str: ""
          }
        },
        methods: {
          saveValue(){
            if (this.str.length !== 0) {
              let bol = this.addtodo(this.str)
              bol ? this.str = "" : null
            }
            
          }
        },
        props:{
          addtodo:{
            type: Function,
            required: true
          }
        }
    }
</script>

<style scoped>
.todo-header input {
  width: 585px;
  height: 28px;
  font-size: 14px;
  border: 1px solid #ccc;
  border-radius: 4px;
  padding: 4px 7px;
}

.todo-header input:focus {
  outline: none;
  border-color: rgba(82, 168, 236, 0.8);
  box-shadow: inset 0 1px 1px rgba(0, 0, 0, 0.075), 0 0 8px rgba(82, 168, 236, 0.6);
}
</style>